I con't solve it's output

int main()
{
int k;
union jatin{
int i :5;
char j :2;
};

union jatin rajpal;
k= sizeof(rajpal);
printf("%d",k);
return 0;
}

& what would be the output if instead of union in the above example if
i'll use struct? Could anyon can explain me union behavior.

 

Hello everybody
i have find the solution of it.
so thanks for all of yours blessings.